为了方便版本管理及开源，使用免费的Git(版本管理工具)以及GitHub作为code server，下面将从code server(远程代码服务器)到Build server/Host(本地编译服务器)的搭建使用都进行详细的说明。
1.code server
1.登入GitHub账户，右上角的加号处选择New organization，如下：
2.在Create an organization页面进行信息的填写，填写后点击Create organization按钮，如下：
Create an organization
3.下一步是叫我们邀请其他成员，默认自己就是管理者，可以在添加其他成员，添加完后点击Finish。
Invite organization members
4.到这边我们的组织就已经创建好了，下面就进行仓库repository的创建，点击Create a new repository，如下：
Create a new repository
5.进行repository信息的添加，先创建U-boot的代码仓库，后面创建Openwrt的原理是一致的，填写完成点击Create repository按钮，如下：
repository
6.添加完后就会出现以下界面，现在XiaomiRouter的U-boot代码仓库已经创建完成。
U-boot
代码服务器端的仓库已经创建了，接下去就在编译服务器端进行项目的clone，并将开源U-boot代码进行上传到代码服务器。
2.Add SSH Key
在clone之前，我们先把本地PC的SSH添加到GitHub中，否则再后面将无法push本地代码到代码仓库中，具体的细节可以查看
1.输入ssh-keygen -t rsa后，直接按三次回车键即可
linye@ly:~/XiaomiRouter/U-boot$ ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/home/linye/.ssh/id_rsa): Created directory '/home/linye/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/linye/.ssh/id_rsa. Your public key has been saved in /home/linye/.ssh/id_rsa.pub. The key fingerprint is: b8:46:21:0f:13:a3:2e:ac:bc:f5:23:56:b5:4f:b2:c9 linye@lyThe key's randomart image is: +--[ RSA 2048]----+ | o | | . o | | . + . | |.. = + | |... = S | |o. o + . | |.. .. + * | | oo.o E . | | .. ... | +-----------------+
2.可以查看到在~/.ssh/下面生成三个文件
linye@ly:~/XiaomiRouter/U-boot$ cd ~/.ssh/linye@ly:~/.ssh$ ls id_rsa id_rsa.pub known_hosts
3.cat id_rsa.pub里面的内容将其复制
4.登录GitHub官网，打开Settings
Settings
5.在点击左侧的SSH and GPG keys，点击右上角的New SSH key,然后将上面复制的id_rsa.pub粘贴到key格里面，点击Add SSH key即可。
Add SSH key
3.Build server/Host
1.先在Ubuntu里面创建存放项目的文件夹，如下：
linye@ly:~$ mkdir XiaomiRouter linye@ly:~$ cd XiaomiRouter/
2.进入文件XiaomiRouter文件夹，通过GitHub上的路径进行Clone代码，路径可以在页面上查看
clone
3.输入git clone指令即可clone该代码(需要先安装git工具)
linye@ly:~/XiaomiRouter$ git clone https://github.com/XiaomiRouter/U-boot.git Cloning into 'U-boot'... remote: Counting objects: 3, done. remote: Total 3 (delta 0), reused 0 (delta 0), pack-reused 0 Unpacking objects: 100% (3/3), done. Checking connectivity... done.
4.clone后即可看到XiaomiRouter文件夹下多了一个U-boot文件夹，进入后只有一个README.md文件
linye@ly:~/XiaomiRouter$ ls U-boot linye@ly:~/XiaomiRouter$ cd U-boot/ linye@ly:~/XiaomiRouter/U-boot$ ls README.md
5.在网络上可以下载到MTK提供的SDK，使用里面解压出来的Uboot，我这边使用GitHub上的一个项目“https://github.com/cleanwrt/u-boot_mt7620”。
6.将下载到的zip包拷贝到XiaomiRouter目录下，并进行解压，将解压后将u-boot_mt7620-master文件夹内部的全部内容都拷贝到U-boot目录下，删除掉u-boot_mt7620-master和u-boot_mt7620-master.zip
linye@ly:~/XiaomiRouter/U-boot$ unzip u-boot_mt7620-master.zip linye@ly:~/XiaomiRouter/U-boot$ cp u-boot_mt7620-master/* U-boot/ -rf linye@ly:~/XiaomiRouter/U-boot$ rm u-boot_mt7620-master* -rf
7.进入U-boot通过git status命令进行参看拷贝后的与原本的差异，可以看到提示我们使用git add命令进行添加需要commit的文件
linye@ly:~/XiaomiRouter/U-boot$ git status On branch master Your branch is up-to-date with 'origin/master'. Untracked files: (use "git add <file>..." to include in what will be committed) Ai-BR100 CHANGELOG COPYING CREDITS MAINTAINERS MAKEALL Makefile README board/ common/ config.in config.mk cpu/ disk/ doc/ drivers/ fs/ httpd/ include/ lib_generic/ lib_mips/ mips_config.mk mkconfig net/ rtc/ scripts/ stage1/ tools/ u-boot_version.h nothing added to commit but untracked files present (use "git add" to track)
8.通过git add命令，将所有新增的文件添加到缓冲区
linye@ly:~/XiaomiRouter/U-boot$ git add Ai-BR100 CHANGELOG COPYING CREDITS MAINTAINERS MAKEALL Makefile README board/ common/ config.in config.mk cpu/ disk/ doc/ drivers/ fs/ httpd/ include/ lib_generic/ lib_mips/ mips_config.mk mkconfig net/ rtc/ scripts/ stage1/ tools/ u-boot_version.h `
9.这是再次使用git status命令进行查看，可以发现原本待add的文件夹都没了，随之多出的是一个个new file等待commit
linye@ly:~/XiaomiRouter/U-boot$ git status On branch master Your branch is up-to-date with 'origin/master'. Changes to be committed: (use "git reset HEAD <file>..." to unstage) new file: Ai-BR100 new file: CHANGELOG new file: COPYING new file: CREDITS new file: MAINTAINERS ...
10.接着使用git commit命令进行提交新增的代码，可是我们会发现有如下提示，如果没出现以下提示，最好也按第11步设置下，以防默认名不是你想要的，还得再来一遍。
linye@ly:~/openwrt/XiaomiRouter/XiaomiRouter_Uboot$ git commit -m "add MTK_SDK_Uboot into project" *** Please tell me who you are. Run git config --global user.email "you@example.com" git config --global user.name "Your Name" to set your account's default identity. Omit --global to set the identity only in this repository. fatal: unable to auto-detect email address (got 'linye@ly.(none)')
11.在commit的时候会出现如下信息，所以我们需要设置下邮箱和名字,这时候再执行commit命令即可
linye@ly:~/XiaomiRouter/U-boot$ git config --global user.email "creator_ly@163.com" linye@ly:~/XiaomiRouter/U-boot$ git config --global user.name "ye.lin" linye@ly:~/XiaomiRouter/U-boot$ git commit -m "add MTK_SDK into project"
12.输入tig命令进行查看提交记录如下，多了一条add MTK_SDK_Uboot into project的记录
2017-02-09 19:26 ye.lin o [master] add MTK_SDK_Uboot into project 2017-02-09 15:10 ye.lin I [origin/HEAD] [origin/master] Initial commit
13.再次通过git status命令查看状态，提示我们使用git push进行将本地commit提交到远程代码仓库
linye@ly:~/XiaomiRouter/U-boot$ git status On branch master Your branch is ahead of 'origin/master' by 1 commit. (use "git push" to publish your local commits) nothing to commit, working directory clean
14.使用git push命令提交到GitHub仓库
linye@ly:~/XiaomiRouter/U-boot$ git push origin master Username for 'https://github.com': creator_ly@163.com Password for 'https://creator_ly@163.com@github.com': Counting objects: 461, done. Delta compression using up to 4 threads. Compressing objects: 100% (455/455), done. Writing objects: 100% (460/460), 2.03 MiB | 454.00 KiB/s, done. Total 460 (delta 62), reused 0 (delta 0)remote: Resolving deltas: 100% (62/62), done. To https://github.com/XiaomiRouter/U-boot.git 610514f..8fe85af master -> master
提交成功后，我们可以登录GitHub去看下提交的commit是否已经添加进去了。
GitHub搭建环境(U-boot)的分析就到这边，有感悟时会持续会更新。
